HUD video from my Revotech IP Camera

I want to stream the feed from my Revotech IP camera to the HUD’s “Attitude Indicator” in Mission Planner.

I right-click on the Attitude Indicator, select the “Herelink IP Address” option, and enter my camera’s IP address. However, it’s not working. Could I get some advice please?

you need to use "Set GStreamer source and modify the default incantation

videotestsrc ! video/x-raw, width=1280, height=720, framerate=30/1 ! videoconvert ! video/x-raw,format=BGRA ! appsink name=outsink

replace the first two sections with appropriate pipeline to get your video stream.